I started getting this (2 months tops! of Gi training). I have been doing No-Gi for over a year and never had issues.
The earguard fits well and does not move much. I have not grappled with it yet but I gave it a good shake while wearing it. It is pretty confortable and fits over my big ears with ease.
The earguard is material is pretty soft and does not have sharp edges. My only concern is the velcro fastening system. I am afraid I will scratch others or myself. I will probably wrap it with tape once I get a good fit
I am happy with the guard and will update the review once I get to roll with it.
** I can hear perfectly**
Here are a few pics:
